Yes, that was Tim and June Rooney’s actress granddaughter — they have a few — Kate Mara on Conan O’Brien’s show the other night, telling a very, very funny story about how a boyfriend can turn himself into an ex-boyfriend.

Namely, get on her Dad, Tim Mara’s, bad list.

And the way to do that? Fumble the Vince Lombardi trophy, try to save it with your soccer-playing foot and ding it.

Kate spilled the details of her British soccer-player boyfriend — now ex-boyfriend — and his encounter with the NFL’s championship prize when it was being brought into her parents’ home.